Yamaha YZF-R125 Service Manual: Checking the steering head
1. Wash:
- Bearings
- Bearing races
2. Check:
- Bearings
- Bearing races Damage/pitting →Replace.
3. Replace:
- Bearings
- Bearing races
a. Remove the bearing races from the steering head pipe with a long rod "1" and hammer.
b. Remove the bearing race from the lower bracket with a floor chisel "2" and hammer.
c. Install a new dust seal and new bearing races.
| CAUTION: If the bearing races are not installed properly, the steering head pipe could be damaged. |
NOTE:
- Always replace the bearings and bearing races as a set.
- Whenever the steering head is disassembled, replace the dust seal.
4. Check:
- Upper bracket
- Lower bracket (along with the steering stem) Bends/cracks/damage →Replace.
Removing the lower bracket
1. Stand the vehicle on a level surface.
WARNINGSecurely support the vehicle so that there
is
no danger of it falling over.
2. Remove:
Upper ring nut
Rubber washer
Lower r ...
Installing the steering head
1. Lubricate:
Upper bearing
Lower bearing
Bearing races
2. Install:
Lower ring nut
Rubber washer
Upper ring nut
Lock washer
Refer to "CHECKING AND ADJUSTING
THE STEERING HEAD ...
Other materials:
Drive chain slack
The drive chain slack should be
checked before each ride and adjusted
if necessary.
To check the drive chain slack
Place the motorcycle on the sidestand.
TIP
When checking and adjusting the drive
chain slack, there should be no weight
on the motorcycle.
Shift the transmission in ...
Removing the generator
1. Remove:
Generator rotor nut "1"
Washer
NOTE:
While holding the generator rotor "2" with the
sheave holder "3", loosen the generator rotor
nut.
Do not allow the sheave holder to touch the
projection on the generator rotor.
2. Remove:
Generator rotor "1"
(with the ...
Troubleshooting charts
Starting problems or poor engine performance
Starting problems or poor engine performance
Engine overheating
WARNING
Do not remove the radiator cap when the engine and radiator are hot.
Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be ...